Cooling device for pneumatic tires.



E, CRAIG.

GOLING BEVIG FOR PTEUMATIC TIRES.

APPUGATXON NLM JAN.31,1912.

Patented Sept. 19M.

2 SHEETS-SHEET l.

@Y @ggg y j" gft/@ v T ATTORN EY A. B. CRAIG. COOLING DEVICE FOR PNEUMATICI TIRES. APPLIGATIGN P ILED JAN.31,1912.

Lgggggge .Patented Sept. l0, 1912.

2 SHBETS-SHEBT 2.

Andrew. Cfu@ ATTORNEY g LM J y...

'ha iiifsiitimi.

pneumzifjc 0r sho-e am linni-,1''cubei The outer hib@ sima 0i' me @iunufic tire is mi die @henchmype and eiigzzgos die Side fiiiiiges #L i' l n 5 of iiie Wheei. but the piisuiimtio i l efe red iype and may be reu manner.

The" 1 1 L (he wheel :it (he outer sin@ hereu'i? und, ''mi Wm a false hub ,Limicionl D inizi Hum Hiding and receiving `u-:i if im mi@ 10 and the :1x10 bmi U. iis inner *portion with an mnu- 13, seem-il by limitsy 14, LMieming devices io 'he m member die mf ber s wheel The Y iiu'iiical casing ais@ equipped :i his imi: with ii ifeu'xmnbi L Di'i's l cur-:wing im opening' 'i5 and de iiiciiziblff Seciuvd o the from' Wal? 16 by i s i?, O'hei siiimhie fastening devices, adzipied whe removed in a'oid access io Die intel-iol' of i' ie casing. The oli'ev @iid 18 @if the mii @Ximiied to foi-m "":e bismffii 0i* mime pipi S, and l'iifi inner fnd inimU-.jz ami. if; cmiiieced Wih a Cyiim'iricfii casing Q0 of n i'niarli' pump.

m :fnyy pump coinpiii'es 'die smid @mii puaaiy @if Abla/Sies 21, mounted zuns 22 of n. Shaft Q3, Whish i,

sible bearings 01E the hub of gj 'box 24; 'iig preferably the umm' sidev 0i iie Latter ifi-om wick io ir a point e points wiih a rudinim G The cyiimiiricai casing is c agite? coding the air m diametrica'lly opposite tho place Wherefthe air is drawn from the tire. In this man nerP thel air within the pneumatic tire is maintained at a :swiitticicntly `low :temperature to prevent the tire` from heating and bursting. The branch or connecting pipes are preferably .made in sections, and the Several ortions of the ipe are connected together )y suitable coup ings 27. The rotar pump mohile motor. or other vehicle.. The fixed gear is adapted through the rotarv movement of the wheel to rotate the pinion 9.9 and actuate the shaft of thc pump. The huh of the .gear Wheel 30 is provided with a set screw 352 for .securing the gear to the sleeve 31. Any other form ot g'earinl` however, .mar he emploifcd for trausmittinsirV motion to the rotary pump` lVhen the Wheel rotutes. the pump operates and the air con tained Within the pneumatic tire is caused to circidate through the radiator coil, which. through its exterior arrangement, is cooled hv the outside air. .The radiator uim of course. he located Within the cylindrical cas ing. hut it is preferable to expose it to the atmospherm au illustrated in the accompanyins.r drawings. Tn Fig, ti of the drawings. the cooling .device nonnoeted with a circumieiuiuuiallaf arraurlrod coolii 1f tuhe located Within a fold i4 ot au inner tubo in the manner shown and doaerihod in t e aforesaid an li critican` in i l 'ch 'tl w ini' m'ion generically claimed. or the a of this ad with the, oiroumfcren tial told or iul'mlar rmrtion fit and the cool"- ing tithe Ti eluted on the rim of the Wheel between the aio urtiousno't the outer tuhe or shotJ und ii' i ies not interfere with tho f cumatic tire from `the rim.

- -v f au and 37 the Wheel v cooii'ng tuhe the inturior ot the inner tatie 35 is tuo'rided at ozzinch or p ce the 'Feliu t and alito the and urcmmm l u i tot;

`coolin lio'uid is caused to circulate through the hrunch tubos. t'ho radiator and the circumferential cooling tubo, The liquid in in troduotul into and removed from the cooling `tuhc ha means of a short tuile piercing the fui-liv und thc 'rim oi tho who i and cotouiuoit i imma 'uit `on cooling and when the pump is oor-rated. the' tube and equipped at its outer end with` a suitable closure 39.` The cooling tuhe may be .constructed ofmeta-l, r1 1hhcr or of any other suitable material7 and the liquid may consist of salt, water,i or any other liquid cooling medium, salt water helng preferred in theV warmer seasonsy of the year, especially 1 as 1t 1s a. preservative of rubber, but alcohol o1,- ,some other liquich which will not freeze in winter under ordinary conditions, may be used during the cold months of the year.

o claim is made in the present application to the foilowing subject-matter, which claimed in a copending application filed hy me Sept. 7. 1911, Serial Noofi:

The combination with a Wheel having a pneumatic tire. of a circumferential cooling tube located within the tire, a radiator'coil mounted on the Wheel and connected with the cooling tube, a rotary pump mounted on the wheel and communicating with theradiator coil for producing a'circulation of a vcooling medium through the radiator coil and the tire, arid means for rotating the said pump.

The combination with aV Wheel hau-ing a pneumatic tire provided with means for re" ceiving a cooling medium` of' a radiator coil arranged on andv fitting the huh at one sido of the Wheel and carried hy the latter and communicating I with the. tire.) a pump mounted on and carried hjv the wheel and communicating with the radiator coilfor produciug a circulation of a cooling medium through the same and through the tire, and gearing located at the sido of the Wheel op* posit@ that at which the radiator coil is arranged and including a fixed gear connected with the axle of the Wheel, and a rotarir gear connected with the pump and. meshing with and revoluhle around tho fixed gear.

The combination with .ft wheel having a rim, ot a circumtcrcntial cooling tuhe mounted ou the rim at the si( f thereof, a tire including an inner tul no: a circumferential .told fitted aromnl the sides and the outer portion ot the pooling tuhe and terminating at opposite .aides thereof adjacent to the rim, and an outer tuhe or shoe covering theI inner tuho and detiuhahly connected with the rim, the inner and outer tubes of thrtiro hcing detaeluxhlo 'from the rim with out ren'ioving thc cooling tuhe therefrom, and menno` arranged exteriorly of the tire for causing a circulation of a cooling medium through the cooling tube.

What is claimed imm 1. The combination with a wheel having a pneumatic tire` of a casing arranged at the center of the Wheeliand constituting a hollow false huh section or memhen a radiator coil mounted on the exterior of the casing and supported hr the same, a rotary pump housed wit .u the casing and connected with che 'iadiamr coil, hiench. tubes connec ing the pump and the rndiuto i coil with che pneumaic tire for' czmsingl a ciiculuion o cooling medium through the "eine anni 'the coil, and means for operating the pump.

2. The combination Wih a Wheel having a, pneumatic tire, of a hollow cylindrical ing mounted on the Wheel centrally hereo'f and forming n false huh section or member, a cylindrical coil arranged on the exterior of the casing and supportcc'l by the saine, an eccentrically arranged i-Otary pump housed'within the casing und connected With onecnd of the coil, branch tubes connecting the pump and the coil .with he pneumatic. tire for circulating zu cooling medium within the same, and gearing connected with the pump for operating the saine.

3. The combination with a Wheel having a pneumatic tire, of a hollow casing mounted on the front of the Wheel at the Centei ohci-em 'frontI or Aoutel' side and located Within of and forming a false hub and provided at the ffcnt with a removable plate adapted io mord access to the interior o1e the casing and thc end of the axle, a radiator coil caifriad by thc casing, an ceceni-,ideally arranged rotary pump secured to the Wheel he ib-.c

casing and having a, Shaft extending through he wheel lo he inner connec-eol wih fue in for oneiatin@ the i :p L. i connected man the mfiator c l pump the pucun;

at spaced ponts* Ll. The oonihineion Wih en Wheel hav pneumatic gire nci inoun on the ax e, *l lzic pi'ojecting from Hic outer Side of he Wheel, o a holiow cas 'arrangc at fie Genie? of the ufiecl nifl i ceiving Jche pfcjeceing potion of the and provided at lie innei4v poiftion with attaching flange secued lo the Seial wheel7 indi-lion coil carrie-fl by the casing, en centrically arming, fl :mini-y 'pump housed Within the. casing auf; povide withL attaching lugs or iengcs secuiecl in the Wheel hetween the axle and the peiiphcal portion of the casing, pipe connecions beween une punip, the radiator coil and, ihe tire, and means 'foi' ogemling 'he pump,

In testimoni/.Q i 'he oiegeizfg;

natu in 

